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Experimental Biology and Medicine | 1968

The Effect of Oral and Intravenous D-Ribose on Plasma Insulin Levels in Unanesthetized Dogs

Jeffrey B. Halter; Schwartz Mz; Frederick C. Goetz

Summary The administration of D-ribose was followed quickly by a sharp rise in plasma insulin levels in 9 awake, alert, unstressed dogs (16 experiments). The elevated insulin levels occurred while blood glucose levels remained constant or dropped. Oral administration of ribose was not as effective as intravenous administration in causing insulin release. Thus the mechanism of action of ribose in these experiments does not appear to be associated with any gastrointestinal factor.


World Journal of Surgery | 1981

Management of morbid obesity by jejunoileal bypass

Schwartz Mz; Richard D. Rucker; Philip D. Schneider; John J. Coyle; Ignacio J. Guzman; Richard L. Varco; Henry Buchwald

Jejunoileal bypass has been the subject of over 350 reports in the literature. The initial enthusiasm for massive intestinal bypass seems to be declining because of its association with numerous and occasionally severe or fatal complications. In the past 9 years, there have been 800 jejunoileal bypass procedures performed at the University of Minnesota. A specific protocol for preoperative, intraoperative, and postoperative care has been, devised to minimize the perioperative and long-term morbidity and mortality. The most frequent complications in the immediate postoperative period were urinary tract infection (11.9%), wound infection (6%), and thrombophlebitis (2.9%). There were 2 deaths which occurred in the early postoperative period.In our patient series, 80.5% sustained a weight loss in excess of 30 kg by 1 year. This weight loss has been associated with many beneficial effects including reduction in serum lipid levels, blood pressure, and blood sugar in the diabetic patients. There has also been a marked improvement in self-esteem and socialization.The severe adverse sequelae of jejunoileal bypass have occurred in approximately 8%–10% of our patients. Many of the electrolyte and liver dysfunction problems have been minimized by close and frequent follow-up. Fatigue (8%), cholelithiasis (4%), urolithiasis (9%), and bypass enteritis (10%) have been other adverse results of massive intestinal bypass. There were 5 additional deaths (total mortality rate of 1%) in our series related to sepsis and/or hepatic failure.The reanastomosis rate has been under 2% in our series to date.RésuméLes court-circuits jéjunaux réalisés pour traités les obésités morbides ont fait lobjet de 350 articles au moins. Lenthousiasme en faveur du court-circuit intestinal massif parait être en déclin en raison des nombreuses complications sévères ou fatales quil a pu entrainer. Au cours des 9 dernières années 800 court-circuits jéjuno-iléaux ont été pratiqués à lUniversité du Minnesota. Un protocole pré-opératoire, opératoire et post opératoire a été établi pour tenter de réduire la mortalité et la morbidité à long terme. Les complications post-opératoires immédiates furent les suivantes: infection urinaire (11.9%), infection pariétale (6%), thrombophlébite (2.9%), 2 décès survinrent au décours de lintervention.Dans notre série 80.5% des malades ont perdu plus de 30 kg en un an. Cette réduction pondérale est allée de pair avec la réduction du taux des lipides sériques de la pression et du taux du sucre sanguin chez les diabétiques. Elle sest accompagnée également dune amélioration de la vie sociale et dun état dautosatisfaction.Chez 8 à 10% de nos malades environ, des séquelles sont survenues chez nos opérés. Les problèmes de déséquilibre électrolytique et des modifications des fonctions hépatiques ont été réduits en revoyant souvent et à courts intervalles nos opérés. Dautres séquelles moins connues sont à signaler: état asthénique (8%), lithiase biliaire (4%), lithiase urinaire (9%), état entéritique (10%). Cinq morts à distance doivent être rapportées; elles furent dûes à un état septique ou à une insuffisance hépatique grave.Le taux des réanastomoses sélèvent à 2% dans notre série.


American Journal of Clinical Pathology | 1976

Hepatic Lesions of Central Pericellular Fibros is in Morbid Obesity, and after Jejunoileal Bypass

A. Thomas Marubbio; Henry Buchwald; Schwartz Mz; Richard L. Varco


Advances in Surgery | 1973

Surgical treatment of obesity.

Henry Buchwald; Schwartz Mz; Richard L. Varco


Current Problems in Surgery | 1975

Intestinal bypass procedures: Partial ileal bypass for hyperlipidemia and jejunoileal bypass for obesity

Henry Buchwald; Richard L. Varco; Richard B. Moore; Schwartz Mz


Surgery | 1976

The effect of portacaval shunt on plasma lipids and tissue cholesterol synthesis in the dog.

John J. Coyle; Schwartz Mz; Marubbio At; Richard L. Varco; Henry Buchwald


Journal of Surgical Research | 1973

Preoperative preparation, operative technique, and postoperative care of patients undergoing jejunoileal bypass for massive exogenous obesity

Schwartz Mz; Richard L. Varco; Henry Buchwald


International Journal of Obesity | 1981

Positive results of jejunoileal bypass surgery: Emphasis on lipids with comparison to gastric bypass

Buchwald H; Richard D. Rucker; Schwartz Mz; Richard L. Varco


Surgical forum | 1971

Liver function and morphology following distal ileal excision in the rabbit

Schwartz Mz; Richard L. Varco; Henry Buchwald


Surgery | 1972

Cholesterol dynamics following partial ileal bypass versus following partial ileal excision in the rabbit.

Schwartz Mz; Richard B. Moore; Richard L. Varco; Henry Buchwald

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